Unit tests are the smallest and most simple of tests - they make assertions on the smallest units of work, isolating each part of a single component. You can do that by using Vue Test Utils. new Vue({ router, store, i18n, }).$mount('#app'); To install Vue plugins. I bet you're already doing this (in fact, is this mechanism that expose $route to your component).

Either way, after importing BOTH router and Vue Router, the sample test below ran for me fine. So when you want to stub Vue Router properties, you need to avoid installing Vue Router on the base Vue constructor. This means we can use them anywhere in our application without needing to import them. Vue Test Utils and the enormous JavaScript ecosystem provides plenty of tooling to facilitate almost 100% test coverage. For the 1.x router see the 1.0 branch.. Introduction. When we run tests, we need to make these Vue Router components available to the component we're mounting.

Testing actions in the context of a component is correctly dispatching them is discussed here.. The reason we use this.$router is because we don't want to import the router in every single component that needs to manipulate routing. You can also check out this example live.

When you install Vue Router, the router-link and router-view components are registered. This is a more advanced API that primarily targets library authors but can come in handy for developers as well, most of the time in a custom component like a NavLink or other. Some other types of tests include e2e (end to end) tests, and snapshot tests. This is vue-router 3.0 which works only with Vue 2.0. When you install Vue Router on a Vue constructor, they are added as read-only properties to the Vue constructor prototype. However it could use some improvements: If you have multiple tests.

Throughout the docs, we will often use the router instance.

Unit tests are only one part of the testing pyramid, though. I've managed to resolve the warning, I'm not 100% sure why this works as inside the router it's already calling Vue.use(VueRouter) although maybe it's due to extending rather than newing inside the tests. #Testing Actions. vue-router is the official router for Vue.js.It deeply integrates with Vue.js core to make building Single Page Applications with Vue.js a breeze. Keep in mind that this.$router is exactly the same as using router.

Testing actions in isolation is very straight forward. In the example, a vuex store and a reference to vue-i18n are also being installed. # Using stubs This can be very confusing if you aren’t aware of the fact! The source code for the test described on this page can be found here. This answer saved me a lot of time. you actually have to route to /whatever and then to /totest if you want to reset the state.

When using the v-slot API, it is required to pass one single child to router-link. This will expose a $router member in all your components.